X33=X13+X14=0.0483+0.0337=0.082
火电火电火电270.0526280.0521290.0444d1300.082310.082320.082330.082
图3.3d1短路点等值网络图（a）
由图3.3化简得图3.4
10.082
X34= = =0.021 1/ X30+1/ X31+1/ X32+1/ X334
火电火电F1-F4火电270.0526280.0521d1340.021290.0444
图3.4d1短路点等值网络图（b）
2） 化简d2短路点的等值网络 由图3.2化简得图3.5
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火电火电火电270.0526280.0521290.044470.0337d280.0483310.082320.082330.0821F2F3F4F
图3.5 d2短路点等值网络图（a）
由图3.5化简得图3.6
10.082
X35= = =0.0273 1/ X31+1/ X32+1/ X333
火电火电火电270.0526280.0521290.044470.0337d280.0483350.0273
图3.6 d2短路点等值网络图（b）
由图3.6化简得图3.7 1
X36= 1/ X27+1/ X28+1/ X29+1/ X35
1
= = 0.0103 1/0.0526+1/0.0521+1/0.0444+1/0.0273
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360.010370.0337d280.04831F
图3.7 d2短路点等值网络图（c）
由图3.7化简得图3.8
X37= X36+ X7=0.0103+0.0337=0.044
360.0103d280.04831F
图3.8 d2短路点等值网络图（d）
由图3.8化简得图3.9 X360.0103C1== =0.2 X270.0526X360.0103C2= = =0.2 X280.0521X360.0103C3= = =0.23 X290.0444X360.0103C4= = =0.38 X350.0273X370.044X38= = =0.22
C10.2
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X370.044X39= = =0.22
C20.2X370.044X40= = =0.1913
C30.23X370.044X41= = =0.1158
C40.38
火电火电火电F2-F4F1380.22390.22d2400.1913410.115880.0483
图3.9 d2短路点等值网络图（e）
因为d2、d3、d4、d5各点的短路电流都相同，所以只化简一点。 3）化简d6短路点的等值网络
由图3.9得到短路点d6的等值阻抗图3.10
火电火电火电F2-F4F1380.22390.22400.1913410.115880.0483150.0483170.4902d6
图3.10 d6短路点等值网络图（a）
由图3.10化简得图3.11 X42=X15+X17=0.045+0.4902=0.5352
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1
X43= 1/X38+1/X39+1/X40+1/X41+1/X8
1
= =0.0229 1/0.22+1/0.22+1/0.1913+1/0.1158+1/0.0483
430.0229420.5352d6
图3.11 d6短路点等值网络图（b）
由图3.11化简得图3.12 X44=X42+X43=0.5352+0.0229=0.5581 X43
C1= =0.0229/0.22=0.104
X38C2=X43/X39=0.0229/0.22=0.104 C3=X43/X40=0.0229/0.1913=0.1197 C4=X43/X41=0.0229/0.1158=0.1978 C5=X43/X8=0.0229/0.0483=0.4741 X44
X45= =0.5581/0.104=5.3663 C1X44
X46= =0.5581/0.104=5.3663 C2X44
X47= =0.5581/0.1197=4.6625 C3X44
X48= =0.5581/0.1978=2.8215 C4
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